Intro

The GSX-R750 was built to compete in the various worldwide championships as well as to be used on the street. It is considered as one the very first street-legal racers, there had been a number of sports machines but the GSX-R750 was something else. It was a revolutionary motorcycle with specifications like over 100 hp power output, less than 180 kg dry mass, 55° leaning angle, lightweight alloy double-cradle perimeter frame, 18-inch wheels and streamlined design based on the factory Formula 1 and Endurance racers. Upon its introduction in 1985, Suzuki's PR department claimed that it was the first aluminum-alloy framed production motorcycle; the truth was that the German firm Ardie had beaten them to it back in 1930.

The air/oil-cooled motor had cylinder dimensions of 70,0 x 48,7 mm and had 29 mm flat slide carbs. In a racing trim (there was a tuning kit available for competitive racing) the GSX-R750 engine provided 130 bhp. The new high-tech engine was narrower than earlier inline-fours and materials like magnesium was used to keep the weight down to minimum.

The GSX-R750 was basically a street-legal and detuned version of the worksGS1000R racer. The flat slide carburetors gave faster response to the throttle compared to the vacuum carburetors. It also required the rider to be more gently with the throttle. There were no compromises, it was very quick in hands of a skillful rider.

The components of the bike are all high quality but make sure that the tires, suspension and bearings are all in good condition or the bike can scare the living daylight out of you! The GSX-R750 engine is considered as reliable but we all know that there is no such thing as bulletproof engines. The frame of the early models is not that rigid and bend easily when dropped.

The GSX-R750 entered the market in March 1985. There's not many bikes out there in mint condition, most of them are ridden very hard and seen their best days. Nevertheless the evolution of modern sport bikes started with the GSX-R750. It's a real classic.

1986 GSX-R750G

Even though the GSX-R was doing extremely well in showrooms, it wasn't winning everything in sight on the racetrack. Kevin Schwantz's first season aboard the GSX-R, 1986, netted a single win in AMA Superbike. The title that year was won by Honda's aluminum framed VFR750 piloted by Fred Merkel.

The GSX-R750J saw a wholesale revision of the bike, with every part of its design - engine, frame, suspension, bodywork -dramatically revised. This was a change in two years a dramatically faster revision than the standard four year model lifetime. It featured a radical short-stroke version of the oil-cooled engine, increasing stroke by 4mm and bore by 3mm, which allowed for rpms up to 13,000. Suzuki also ducted cool air from the front fairing to the airbox; a nascent form of ram air that while not high in pressure allowed for lower intake air temperatures.

1989 GSX-R750K

1989 Suzuki GSX R750K in Blue/White

1989 Suzuki GSX R750K in Red/White

1989 Suzuki GSX R750K in Black/Grey

V.I.N. #: JS1GR77A K2100001

ENGINE PREVIX: R708-

MODEL CODE: 17C

COLOR: Blue & White, Red & White

Stainless steel covered muffler

Adjustable front brake lever position

1989 GSX-R750RK

1989 Suzuki GSX R750RK in Blue/White

Only 500 made.

The '89 GSX-R750R (RR) was a revision to the previous long-stroke format of the original GSX-R mainly aimed at small teams who wanted to continue using their hard-earned tuning knowledge. It came with special race bodywork and significant revisions to make the bike a true "out of the crate" racer.

1990 GSX-R750L

1990 Suzuki GSX-R750L in Blue/White

1990 Suzuki GSX-R750L in Red/White

1990 Suzuki GSX-R750L in Black/Grey

V.I.N. #: JS1GR7AA L2100001

ENGINE PREFIX: R716-

MODEL CODE: 17D

COLOR: White & Red, Blue & White

Engine displacement returns to 749 cc

Four-into-one stainless steel exhaust

Hyper Sports decal on fairing

88 rear-wheel hp - was actually an ~2hp decrease but had much more mid-range torque, particularly around 5,000 rpm.

Suzuki reverted back to the long-stroke format and used an engine similar to the '89 GSX-R750R.